SKU: 55250864681

Chafer Bug Nematodes | Biological Lawn Pest Control

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Description

Chafer Bug Nematodes | Biological Lawn Pest ControlIf you've ever come downstairs on a summer morning to find your lawn looking like it's been visited by a small landscaping disaster turf flipped over, holes scratched into the surface, soil scattered across the grass you've probably already met the chafer grub. Or rather, you've met the foxes, badgers, crows or magpies who've worked out that there are chafer grubs in your lawn, and have spent the night excavating them with great enthusiasm and zero

If you've ever come downstairs on a summer morning to find your lawn looking like it's been visited by a small landscaping disaster — turf flipped over, holes scratched into the surface, soil scattered across the grass — you've probably already met the chafer grub. Or rather, you've met the foxes, badgers, crows or magpies who've worked out that there are chafer grubs in your lawn, and have spent the night excavating them with great enthusiasm and zero regard for your gardening.

The chafer grub itself does some of the damage — chewing the grass roots from below — but the secondary havoc caused by hungry wildlife digging for them is often far more visible and distressing. Treating the grubs reduces both the root damage and (crucially) the reason wildlife are tearing your lawn apart.

This is the gentle answer. Microscopic beneficial nematodes — naturally occurring soil organisms — that target chafer larvae specifically, while leaving the rest of your garden ecosystem completely undisturbed. From Ladybird Plant Care, our trusted suppliers of biological controls — chosen because they help us work with the garden rather than against it.

What chafer grubs do

Chafer larvae are the C-shaped white grubs of various chafer beetle species (most commonly the garden chafer and the cockchafer in UK lawns). They live just below the surface of the lawn, feeding on grass roots through summer and autumn before pupating and emerging as adult beetles the following spring.

The damage shows up in two ways:

  • Direct damage — patches of grass that look yellow, sparse or dead, with the turf becoming loose enough to lift away easily. The roots have simply been eaten through
  • Wildlife damage — and this is usually the dramatic part. Foxes, badgers, crows, magpies, jackdaws and starlings all know that chafer-affected lawns are dinner. They'll scratch, dig, peel back turf and excavate enthusiastically. A serious infestation followed by a hungry fox visit can leave a previously lovely lawn looking properly destroyed

Treating the grubs deals with both problems. With no chafer larvae to find, the wildlife move on to other gardens, and your lawn is left to recover.

How nematodes work

The nematodes in this pack are microscopic beneficial roundworms that target chafer larvae specifically. Mixed with water and applied to the lawn, they move down through the moist soil to find the grubs, infect them, and end the larval stage of the life cycle. The grass roots stay safe; the wildlife find nothing to dig for.

Crucially, they're completely safe for everything else: bees, butterflies, ladybirds, earthworms, birds, pets, children, garden plants. The targeting is genuinely specific — these nematodes evolved alongside their host species and don't affect anything else living in the soil.

When to treat — timing matters

Chafer treatment timing is more nuanced than some other biological controls. There are two windows worth knowing about:

  • Late summer (typically August–early October) — the ideal treatment window. The grubs that hatched earlier in the year are still small and shallow, making them most vulnerable to nematode infection. Soil is usually warm enough and moist enough for nematodes to work effectively
  • Spring (typically April–May) — a secondary window if you've discovered grub damage in spring before the larvae pupate. Less effective than autumn treatment because the grubs are larger and tougher, but worth doing if your lawn is actively suffering

Soil temperature must be reliably above 12°C for the nematodes to be effective. Apply too early in spring or too late in autumn and they simply won't have the warmth they need to find their hosts.

A note on honest expectations: autumn treatment is significantly more effective than spring. If you're choosing between treating in May or waiting until August/September, the autumn application will give you a far better result. But if your lawn is being destroyed in May and you can't bear to wait, some treatment is better than none.

How to apply

Full instructions come with the pack, but in short:

  • Water the lawn thoroughly the day before treatment — nematodes need moist soil to move through
  • Mix the nematodes with water following the pack guidance
  • Apply with a watering can (rose removed) evenly across the affected area — or with a hose-end applicator for larger lawns
  • Water the lawn again immediately after application to wash the nematodes down into the soil where the grubs are
  • Keep the lawn moist for 1–2 weeks after treatment — this is the most important part. If the soil dries out, the nematodes can't work

Apply on an overcast day or in the cool of evening rather than the heat of midday. Direct strong sunlight is the one thing nematodes really don't tolerate.

Ordering and despatch

Because these are live biological controls, we don't keep them on standing stock — they're ordered in fresh from Ladybird Plant Care so they reach you as effective as possible.

  • Order by 10am Monday for despatch the same week
  • Orders placed after 10am Monday will despatch the following week
  • Not sold during colder months — when soil temperatures are below 12°C, the nematodes can't work, so we pause supply during winter rather than send a product that won't help

Worth bearing in mind when planning your treatment — give yourself a few days' grace, and check soil temperature before ordering if you're at the edges of the season.

What else helps

Nematodes are the most effective intervention, but a few additional habits help reduce chafer problems and recover damaged lawns:

  • Aerate the lawn in autumn — well-drained, healthy turf supports stronger root systems that better tolerate grub damage
  • Top-dress with compost or sandy loam on damaged areas — encourages quicker recovery
  • Overseed bare patches in late summer or early autumn after treatment
  • Don't overwater in summer — chafer adults prefer moist lawns for laying eggs, so very wet conditions in early summer can encourage them
  • Tolerate a slightly less perfect lawn — small numbers of chafer grubs are normal, and a healthy lawn copes with them. Treatment is needed when populations reach damaging levels rather than as routine

The combination of nematodes for the larvae, healthy lawn management, and patience through one growing season usually returns a damaged lawn to good condition.

About Ladybird Plant Care

Ladybird Plant Care are specialists in biological pest controls — gentle, naturally-derived solutions for problems that have traditionally been tackled with chemicals. We stock their range because their approach mirrors our own: work with the garden, not against it, and trust the wider ecosystem to find its own balance.

A note on managing expectations: nematode treatment works gradually. You won't see dramatic results overnight — what you'll notice over the following weeks is that wildlife stop digging, the affected patches stop spreading, and the lawn slowly starts recovering as the grass roots regrow. By the following spring, with some overseeding and patience, most chafer-damaged lawns return to good condition. The work happens quietly, beneath the surface, exactly as it should.

Shipping Notes
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Exchange/Return Notes
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SKU: 55250864681

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BillyD
Waukegan, US
★★★★★ 5
Very durable and amazingly fun
Pattern Name: Assorted, Size: Pack of 2
My dog loves frisbees, but now this is the only one I’ll ever buy again! If you’ve ever had a dog frisbees you know that some dogs can eat/chew-up a frisbee in literally minutes. Not this one, no way! I’ve bought several of these because I keep one in my truck, one on my boat, one for the backyard, and one just for the dog-park (can you say “community drool”? I take these everywhere (see videos) and every single dog that gets ahold of it loves it. As a matter of fact the only problem I’ve ever had with it is when I take my dog to the dog park all the other dogs fight over this frisbee. As far as quality it’s tough as nails, sure if my dog sat and gnawed on it for hours he might eventually tear it up but it would take a very long time and I would see him chewing it up. My dog and all the other dogs at the dog park will gnaw and chew on it and not one dog (from labs to retrievers to pitbulls to Rottweilers to even a malinois, a German Shepard and a massive cane corso to a little cur of a dog) not one has torn it up, and they ALL play tug of war with it. It’s great for teaching young and old dogs how to catch because it is soft enough not to bounce out of their mouth and they can catch it with a good grip. The best thing ever: it’s malleable and can be easily put back into a round shape even after heavy pulling. It floats on the water perfectly and will not sink no matter how wet with water (or drool!). On top of that it’s very light yet is easy to throw in even heavy wind, and as a frisbee guy for decades when I say it throws good, it’s pretty darn accurate whether wet or dry. Personally I have found I like the pink one the best (not the pink swirly one, even though it’s fine I like the black edging on the others as they seem tougher and more solid for throwing). The solid pink ones are easier to see in water, grass, dirt, etc. I have bought 5 of these so far, not because they get trashed or fall apart, but like I said it’s because I have one for every purpose. Highly recommend the solid pink as best color wise.
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Reviewed in the United States on July 30, 2025
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Michael A Shaffer
Cuba, US
★★★★★ 4
Great frisbee for our golden doodle
Pattern Name: Assorted, Size: 9" Pack of 5
Love the product. Our golden doodle can chase these all day long. They are light enough and easy on him to catch them and they fly well. Only complaint is I wish they were a little cheaper. He does go through them
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Reviewed in the United States on March 12, 2026
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E. Johnson
New York, US
★★★★★ 5
Amazing frisbees for dogs!
Pattern Name: Assorted, Size: Pack of 2
These are the best frisbees for dogs. They hold up well but do fade over time if left in the sun. Our border collie mix is an avid frisbee guy and these are his favorite. The float in water well and last for quite a while. He’s not a chewer so I can’t speak to the durability with chewing. I buy a couple every year when his old ones get faded and gross, otherwise we would continue to use these for over a year!
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Reviewed in the United States on April 21, 2026
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Fawn
Draper, US
★★★★★ 5
Our dogs adore these!
Pattern Name: Assorted, Size: 9" Pack of 5
We have two large-breed dogs who love retrieving in the water and playing catch in the yard, and these flying discs have been fantastic. They are the perfect size, easy to throw due to their lightweight design, and the vibrant colors make them simple to locate. While they hold up well during play, they are best suited for fetching rather than tug-of-war, as the material can be delicate if pulled too hard. Overall, both we and our dogs absolutely love them!
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Reviewed in the United States on May 28, 2026
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Houston Littlejohn
Fort Morgan, US
★★★★★ 3
Fun toy, breaks with rough play
Pattern Name: Assorted, Size: Pack of 2
It's a fun toy and my dog loved it, however he is quite rough so the toy broke at the point where the little plastic loop in the frisbee connects. Good for dogs who are a little more gentle.
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Reviewed in the United States on February 17, 2026

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